Ground-based SAR

The GBSAR is a radar-based terrestrial remote sensing imaging system. It consists of a radar sensor that emits and receives a burst of microwaves, repeating this operation while the sensor is moving along a rail track. The imaging capability is achieved by exploiting the Syntetic Aperture Radar (SAR) technique. The length of the rail determines the cross-range resolution of the acquired images: the longer the rail, the higher the cross-range resolution. The GBSAR is based on a coherent radar system, which measures not only the amplitude but also the phase of the received radar signal. The phase measurements can be exploited, by using interferometric techniques, to derive information on the deformation and topography of the measured scene. The main GBSAR application is deformation monitoring. For a general GBSAR review see Monserrat el al (2014). The GBSAR experience of our group includes:

The development of software tools to process and analyse GBSAR data: we have a complete set of in-house developed tools to perform interferometric and non-interferometric analyses. A large part of he software tools are described in the PhD thesis of Monserrat, available here: PhD_thesis_Monserrat.